Use the table of values and the expected frequencies to calculate the residual values and the chi squaretest statistic x.XYZA8 23 46B 21 13 41Expected FrequenciesYA 14.691 18.237 44.072B 14.309 17.763 42.928Residual Values (Row i and column j)Chi Square Test Statistic(0.j-E)(0 - E)%3DRound all values to 3 decimal placesYThe Chi Square Test Statisticx =

Answered: Use the table of values and the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Hocument/d/1ho6gSyZTqOTIUok211PsszM1fL7Jz4K2HPR4WWL4x1g/edit sert Format Tools Extensions Help 2 100% D 1 ▼ Normal text 2 1 W L #3 E 2 $ Arial A quality control expert at Glotech computers wants to test their new monitors. The production manager claims they have a mean life of 83 months with a variance of 100. If the claim is true, what is the probability that the mean monitor life would be greater than 81.3 months in a sample of 89 monitors? Round your answer to four decimal places. R % 5 T ^ 10.5 + 6 Y & B 7 * CO I U 5 8 I A ( 9 ) 0 6 P
Module 5: Ihd Use the table of values and the expected frequencies to calculate the residual values and the chi square test statistic X XYZ A 34 44 22 B 19 53 32 Expected Frequencies A 25.98 47.549 26.471 B 27.02 49.451 27.529 Residual Values (Row i and column j) Chi Square Test Statistic (0.,, – E. ) E (0 – E) x =E E Round all values to 3 decimal places Y B The Chi Square Test Statistic x =
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Assume the samples are random and independent, the populations are nomally distributed, and the population variances are equal. The table available below shows the prices (in dollars) for a sample of automobile batteries. The prices are classified according to battery type. At a = 0.10, is there enough evidence conclude that at least one mean battery price is different from the others? Complete parts (a) through (e) below. E Click the icon to view the battery cost data. (a) Let u1. P2. H3 represent the mean prices for the group size 35, 65, and 24/24F respectively. Identify the claim and state Ho and H. H Cost of batteries by type The claim is the V hypothesis. Group size 35 Group size 65 Group size 24/24F 101 111 121 124 D 146 173 182 278 124 140 141 89 (b) Find the critical value, Fo, and identify the rejection region. 90 79 84 The rejection region is F Fo, where Fo = (Round to two decimal places as needed.) (c) Find the test statistic F. Print Done F= (Round to two decimal places as…
A group of students measure the length and width of a random sample of beans. They are interested in investigating the relationship between the length and width. Their summary statistics are displayed in the table below. All units, if applicable, are millimeters. Mean width Standard deviation of width Mean height Standard deviation of height Correlation coefficient 7.5 0.909 13.329 2.04 0.756 Round your answers to three decimal places. The students are interested in using the width of the beans to predict the height. Calculate the slope of the regression equation. Write the equation of the line of best fit that can be used to predict bean heights. Use x to represent width and y to represent height. What fraction of the variability in bean heights can be explained by the linear model of bean height vs. width? Express your answer as a decimal. If, instead, the students are interested in using the height of the beans to predict the width, calculate the slope of this new regression…
In regression, what is the difference between an observed value of the response variable and its predicted value called? Choose the correct answer below. R2 A standard error A residual A mean square error Leverage
* Question Completion Status: OC. 0.0099 d. 0.0918 QUESTION 3 EPA fuel economy estimates for automobile models tested recently predicts a mean of 24 mpg and a standard deviation of 6 mpg. Assume that a Normal model applies, N(24, 6 ). What mpg for the automobiles would be the cutoff value for the lowest 10% of the mpg's (the 10th percentile of gas mileage)? O a. 12.80 mpg O b. 10.00 mpg O c. 31.38 mpg O d. 16.32 mpg QUESTION 4
Wheaties cereal is claimed to have an average of 3 grams of dietary fiber per serving. We want to test this hypothesis and to see whether we believe that is true or that the mean amount of fiber is significantly different from 3 grams. A random sample of 25 servings was taken and it yielded a sample mean of 3.4 grams with the sample standard deviation in the amount of fiber, s = .8 grams. %3D Assume that software has determined the p-value to be.02. Carry out the test at the 5% level of significance. Be sure to state your decision rule and your decision for the test. O Fail to Reject the null hypothesis since the p-value is .05 O Fail to Reject the null hypothesis since the p-value is > .05
help me find test statistics, critical values and rejection region
Calculate the sample mean and sample standard deviation of the test scores. Test Scores Frequency 40 49 50 59 8 60 69 4 70 - 79 1 80 89 7 90 99 10 Round your answer to two decimal places. Mean = Standard Deviation = Question Help: D Video Check Answer Type here to search F1 F2 F3 F4 F5 F6 F7 F8 F9 #3 & 4. 7 8. W Y CO 立

Complete the table. Observed Expected Frequency Frequency Residual Squared Category A 25 21 36 20 What is the chi-square test-statistic for this data? B
HW Score: 0%, 0 of 8 points O Points: 0 of 1 Part 1 of 2 A population has a mean u=79 and a standard deviation o = 8. Find the mean and standard deviation of a sampling distribution of sample means with sample size n= 64. H: = (Simplify your answer.)

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